::-webkit-scrollbar
{
    width: 2px;
    height: 2px;
    background-color: #F6F7FA;
}
::-webkit-scrollbar-track
{
    -webkit-box-shadow: inset 0 0 6px rgba(246, 247, 250,0.3);
    border-radius: 10px;
    background-color: #F6F7FA;
}
/*定义滑块 内阴影+圆角*/
::-webkit-scrollbar-thumb
{
    border-radius: 10px;
    -webkit-box-shadow: inset 0 0 6px rgba(246, 247, 250,.3);
    background-color: #C8CDED;
}
input,button,select,textarea{outline:none}
body{
    background: #EFF0F2;
}
ul,li {
    list-style: none;
    padding: 0;
    margin: 0;
}